Subtract 90/70 from 56/24
1st number: 2 8/24, 2nd number: 1 20/70
56/24 - 90/70 is 22/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
56/24 = 56 × 35/24 × 35 = 1960/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
90/70 = 90 × 12/70 × 12 = 1080/840 - Subtract the two like fractions:
1960/840 - 1080/840 = 1960 - 1080/840 = 880/840 - After reducing the fraction, the answer is 22/21
- In mixed form: 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/48-90/70 56/72-90/70